70 lines
2.9 KiB
Markdown
70 lines
2.9 KiB
Markdown
RabbitMQ `3.9.6` is a maintenance release in the `3.9.x` release series.
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Please refer to the **Upgrading to 3.9** section from [v3.9.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.9.0) if upgrading from a version prior to 3.9.0.
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This release requires at least Erlang 23.2, and supports the latest Erlang 24 version, 24.0.5 at the time of release. [RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/which-erlang.html) has more details on Erlang version requirements for RabbitMQ.
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## Changes Worth Mentioning
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Release notes are kept under [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.9.x/release-notes).
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Contributors are encouraged to update them together with their changes. This helps with release automation and a more consistent release schedule.
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### Core Server
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#### Bug Fixes
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* TLS information delivered in [Proxy protocol](https://www.rabbitmq.com/networking.html#proxy-protocol) header is now attached to connection metrics as if it was provided by a non-proxying client.
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GitHub issues: [#3175](https://github.com/rabbitmq/rabbitmq-server/pull/3175), [#3371](https://github.com/rabbitmq/rabbitmq-server/pull/3371) contributed by @prefiks, sponsored by CloudAMQP
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* `max_message_size` had a one-off error in the validator.
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GitHub issue: [#3398](https://github.com/rabbitmq/rabbitmq-server/pull/3398)
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* `mirroring_sync_batch_size` was incorrectly validated as if it represented batch size in bytes.
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It represents batch size in number of messages, so the new default hard cap is now 1M (a very high number that's impractical)
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GitHub issue: [#3398](https://github.com/rabbitmq/rabbitmq-server/pull/3398)
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### Stream Plugin
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#### Bug Fixes
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* Offset parameters were not stored correctly in some cases.
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GitHub issue: [#3360](https://github.com/rabbitmq/rabbitmq-server/pull/3360), contributed by @korsmakolnikov
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* Partitions list order is now stable.
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GitHub issue: [#3423](https://github.com/rabbitmq/rabbitmq-server/pull/3423)
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* When stream clients close connections abruptly, publisher and consumer metrics get cleaned up correctly.
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GitHub issue: [#3340](https://github.com/rabbitmq/rabbitmq-server/pull/3340)
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### Management Plugin
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#### Enhancements
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* Stream publishers are now listed on the individual stream page.
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GitHub issue: [#3389](https://github.com/rabbitmq/rabbitmq-server/issues/3389)
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* Counters have been added to the tiles of several sections on detail pages.
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GitHub issue: [#3422](https://github.com/rabbitmq/rabbitmq-server/pull/3422)
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## Dependency Upgrades
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* Osiris was [upgraded to `1.2.0`](https://github.com/rabbitmq/osiris/compare/v1.1.0...v1.2.0)
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* Ranch was [upgraded to `2.1.0`](https://github.com/ninenines/ranch/compare/2.0.0...2.1.0)
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## Source Code Archives
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To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.9.6.tar.xz` instead of the source tarball produced by GitHub.
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